12723 has 4 divisors (see below), whose sum is σ = 16968. Its totient is φ = 8480.

The previous prime is 12721. The next prime is 12739. The reversal of 12723 is 32721.

12723 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12723 - 2¹ = 12721 is a prime.

It is a d-powerful number, because it can be written as 1 + 2¹¹ + 7⁴ + 2¹³ + 3⁴ .

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (12721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2118 + ... + 2123.

It is an arithmetic number, because the mean of its divisors is an integer number (4242).

2¹²⁷²³ is an apocalyptic number.

12723 is a deficient number, since it is larger than the sum of its proper divisors (4245).

12723 is an equidigital number, since it uses as much as digits as its factorization.

12723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4244.

The product of its digits is 84, while the sum is 15.

The square root of 12723 is about 112.7962765343. The cubic root of 12723 is about 23.3451414157.

It can be divided in two parts, 1272 and 3, that added together give a triangular number (1275 = T₅₀).

The spelling of 12723 in words is "twelve thousand, seven hundred twenty-three", and thus it is an iban number.